D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE curling or crimping D02G; by treatment with liquids, gases or vapours D06B; finishing other than by liquid treatment, of yarns in warp or sheet form D06C; for chemical matters, see D06L, D06M, D06P, D06Q; treatment during rope-making, apparatus for treating ropes auxiliary to rope-making D07BAttention is drawn to the note following the title of Class D02.In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. D02J1/00 D02J1/00Modifying the structure or properties resulting from a particular structureModifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers modifying only the surface D02J3/00 D02J1/02Bulking, e.g. looping by crimping, by curling D02G D02J1/04Compacting D02J1/06Imparting irregularity, e.g. slubbing or other non-uniform features, e.g. high- and low-shrinkage or strengthened and weakened sections D02J1/08Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams D02J1/12Modifying stretch/bulk properties of textured yarns or the like by after-treatment D02J1/14Rendering uniform or evening non-uniform features D02J1/16Rubbing or similar working, e.g. to redistribute or remove fibres D02J1/18Separating or spreading D02J1/20Stressing or stress-relieving, e.g. by vibration or subjection to electrostatic stress or electric discharge D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch stretch spinning D01D5/12 D02J1/221Preliminary treatments D02J1/222Stretching in a gaseous atmosphere or in a fluid bed D02J1/223Stretching in a liquid bath D02J1/224Selection or control of the temperature during stretching D02J1/225Mechanical characteristics of stretching apparatus D02J1/226Surface characteristics of guiding or stretching organs D02J1/227Control of the stretching tension; Localisation of the stretching neck; Draw-pins D02J1/228Stretching in two or more steps, with or without intermediate steps D02J1/229Relaxing in combination with crimping D02G1/20 D02J3/00Modifying the surface D02J3/02by abrading, scraping, scuffing, cutting, or nicking preliminary roughening of fibres, e.g. for spinning, D01G3/00 D02J3/04by brushing D02J3/06by polishing, e.g. glazing, glossing D02J3/08by compressing, e.g. by calendering or ironing D02J3/10by indenting D02J3/12by removing projecting ends of fibres D02J3/14by shearing D02J3/16by singeing D02J3/18Treating with particulate, semi-solid, or solid substances, e.g. wax during package formation B65H71/00; waxing yarns or the like as incidental measures during spinning or twisting D01H13/30 D02J7/00Cleaning, e.g. removing dust, loose fibres, charred ends in combination with the shearing, singeing, or otherwise removing of projecting fibre ends D02J3/12, D02J3/14, D02J3/16 D02J11/00Combinations, not covered by any one of the preceding groups, of processes provided for in such groupsPlant for carrying-out such combinations of processes D02J13/00Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass heating, cooling or drying during spinning or twisting D01H; drying of yarns or the like, in general F26B D02J13/001in a tube or vessel D02J13/003by contact with at least one stationary surface, e.g. a plate D02J13/005by contact with at least one rotating roll D02J13/006in a fluid bed stretching in a fluid bed D02J1/222 D02J13/008with elimination of fumes